NO165713B - PROCEDURE FOR LINING A PIPE PIPE. - Google Patents
PROCEDURE FOR LINING A PIPE PIPE. Download PDFInfo
- Publication number
- NO165713B NO165713B NO850029A NO850029A NO165713B NO 165713 B NO165713 B NO 165713B NO 850029 A NO850029 A NO 850029A NO 850029 A NO850029 A NO 850029A NO 165713 B NO165713 B NO 165713B
- Authority
- NO
- Norway
- Prior art keywords
- resin
- lining
- pipeline
- impregnated
- liner
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 21
- 239000011347 resin Substances 0.000 claims abstract description 30
- 229920005989 resin Polymers 0.000 claims abstract description 30
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- 229910000831 Steel Inorganic materials 0.000 claims description 17
- 239000010959 steel Substances 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 11
- 230000002787 reinforcement Effects 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 4
- 238000004804 winding Methods 0.000 claims description 3
- 230000002745 absorbent Effects 0.000 claims description 2
- 239000002250 absorbent Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims description 2
- 230000005855 radiation Effects 0.000 claims description 2
- 239000012779 reinforcing material Substances 0.000 claims description 2
- 239000011358 absorbing material Substances 0.000 claims 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 230000000712 assembly Effects 0.000 description 3
- 238000000429 assembly Methods 0.000 description 3
- 239000002657 fibrous material Substances 0.000 description 3
- 239000003673 groundwater Substances 0.000 description 3
- 239000012530 fluid Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000004645 polyester resin Substances 0.000 description 2
- 229920001225 polyester resin Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920006264 polyurethane film Polymers 0.000 description 1
- 239000011253 protective coating Substances 0.000 description 1
- 239000012261 resinous substance Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229920011532 unplasticized polyvinyl chloride Polymers 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/0017—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor characterised by the choice of the material
- B29C63/0021—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor characterised by the choice of the material with coherent impregnated reinforcing layers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
- B29C63/26—Lining or sheathing of internal surfaces
- B29C63/34—Lining or sheathing of internal surfaces using tubular layers or sheathings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
- F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
- F16L58/04—Coatings characterised by the materials used
- F16L58/10—Coatings characterised by the materials used by rubber or plastics
- F16L58/1009—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe
- F16L58/1027—Coatings characterised by the materials used by rubber or plastics the coating being placed inside the pipe the coating being a sprayed layer
Abstract
Description
Den foreliggende oppfinnelse vedrører en fremgangsmåte til foring av en rørledning der en harpiksimpregnert rørf<p>rmig foring formes til rørledningsflaten og harpiksen herdes slik at foringen danner en stiv selvbærende foring. The present invention relates to a method for lining a pipeline where a resin-impregnated tubular lining is shaped to the pipeline surface and the resin is hardened so that the lining forms a rigid self-supporting lining.
Ved denne løsnings mest generelle form, f.eks. som angitt In the most general form of this solution, e.g. as indicated
i britisk patentskrift 1.449.455, omfatter det fleksible forings-rør sjikt av fibermateriale, såsom en nålet filt som er impregnert med den herdbare harpiks, idet filten eller fibermaterialet danner et ideelt absorpsjonsmateriale som sikrer effektivt opptak av harpiksen til dannelse av en ferdig foring med den nødvendige tykkelse. Til en side av dette fibermateriale er det bundet en in British patent document 1,449,455, the flexible casing comprises a layer of fibrous material, such as a needle-felt impregnated with the curable resin, the felt or fibrous material forming an ideal absorbent material which ensures effective absorption of the resin to form a finished liner with the required thickness. To one side of this fiber material is tied a
ugjennomtrengelig (f.eks. polyuretan) film. Slik foringen først fremstilles.befinner filmen seg på utsiden av filtmaterialet, impermeable (e.g. polyurethane) film. As the liner is first manufactured, the film is on the outside of the felt material,
hvilket muliggjør impregnering ved å fylle en viss mengde harpiks i det indre av det fleksible rør og deretter klemme røret sammen f.eks. ved å la det passere mellom nip-valser, i den hensikt å sikre jevn fordeling av harpiksen i filtmaterialet. which enables impregnation by filling a certain amount of resin in the interior of the flexible tube and then clamping the tube together e.g. by letting it pass between nip rollers, in order to ensure even distribution of the resin in the felt material.
Når det fleksible foringsrør settes inn i rørledningen, forankres en ende av det, hvoretter resten av røret vrenges gjennom den forankrete ende slik at røret snus om i rørledningen og legger seg an mot den flate som skal fores. Det medium som anvendes til vrengningen er vanligvis en væske, og når vreng-ningsprosessen er avsluttet, forblir væsken inne i det vrengte rør for å holde det an mot rørledningsflaten mens harpiksen herder. For dette formål kan det sirkuleres varme gjennom det omsnudde rør for å sette iverk eller akselerere herdingsigang-settingsprosessen. Etter at herding har begynt i den slags harpiks som normalt benyttes, fortsetter herdingen vanligvis på naturlig måte inntil herdingen er avsluttet. When the flexible casing is inserted into the pipeline, one end of it is anchored, after which the rest of the pipe is twisted through the anchored end so that the pipe is turned around in the pipeline and rests against the surface to be lined. The medium used for the twisting is usually a liquid, and when the twisting process is finished, the liquid remains inside the twisted pipe to hold it against the pipeline surface while the resin hardens. For this purpose, heat can be circulated through the inverted tube to initiate or accelerate the hardening-initiation setting process. After curing has begun in the type of resin normally used, curing usually continues in a natural manner until curing is complete.
Ifølge et annet utførelseseksempel på gjennomføring av foringsprosessen, vrenges ikke foringsrøret, men mates inn i rørledningen og blåses deretter opp ved anvendelse av fluidum- According to another embodiment of carrying out the casing process, the casing is not twisted, but is fed into the pipeline and then inflated using fluid
trykk for å forme og tilpasse foringsrøret til rørledningsflaten. Ved dette arrangement må foringsrøret konstrueres på en annen måte samt må forsynes med en innvendig ugjennomtrengelig plasthinne i form av et rør for iverksettelse av oppblåsingsprosessen. Foringen kan eventuelt være forsynt med en ytre hinne for å hindre kontakt med harpiksen. pressure to shape and conform the casing to the pipeline surface. With this arrangement, the casing must be constructed in a different way and must be provided with an internal impermeable plastic membrane in the form of a tube to initiate the inflation process. The lining can optionally be provided with an outer membrane to prevent contact with the resin.
Under alle omstendigheter er foringsrøret selvsagt fleksibelt og håndterbart, selv når det er impregnert med harpiks, før innsettingstrinnet. Under alle omstendigheter avpasses forings-røret imidlertid etter størrelsen av den rørledning som skal fores, slik at røret ikke vil bli utsatt for for stor spenning eller strekking når det holdes an mot rørledningsflaten. In any case, the casing is of course flexible and manageable, even when impregnated with resin, before the insertion step. In all circumstances, however, the casing pipe is adapted to the size of the pipeline to be lined, so that the pipe will not be exposed to excessive tension or stretching when it is held against the pipeline surface.
Foringsrøret danner sluttelig en hard selvbærende mantel The casing finally forms a hard self-supporting mantle
inne i rørledningen, og denne mantel har vist seg overordentlig nyttig for tetting av rørledningen og også for å muliggjøre endring av bruken av rørledningen. Foringen kan f.eks. inn- inside the pipeline, and this jacket has proved extremely useful for sealing the pipeline and also for enabling the change of use of the pipeline. The liner can e.g. in-
settes når det er ønskelig at rørledningen skal transportere et korroderende materiale som den ellers ikke var egnet til. is set when it is desired that the pipeline is to transport a corrosive material for which it was otherwise not suitable.
Det foreligger imidlertid omstendigheter ved anvendelsen However, there are circumstances in the application
av prosessen til foring av rørledninger o.l. med store diametre, f.eks. av størrelsesorden 183 cm (6 fot) i diameter, hvor f5ringens trykk-periferifasthet blir en faktor når det skal avgjøres hvorvidt den ovenfor beskrevne prosess er akseptabel eller ikke. Når en underjordisk rørledning med stor diameter er plassert i en posisjon hvor det er høye grunnvannskrefter, er det, dersom foringen ikke har tilstrekkelig trykk-periferifast- of the process for lining pipelines etc. with large diameters, e.g. of the order of 183 cm (6 feet) in diameter, where the compressive-peripheral strength of the ring becomes a factor when deciding whether or not the process described above is acceptable. When a large-diameter underground pipeline is placed in a position where there are high groundwater forces, if the liner does not have sufficient pressure-periphery-fast-
het, fare for at den vil bryte sammen under det ytre grunnvanns-trykk. Fra et utformingssynspunkt kan man øke foringens tykkelse i overensstemmelse med det ytre trykk man regner med den kan bli utsatt for, men beregninger for foringer med store diametre på steder med moderat grunnvann antyder at det kreves foringer med en tykkelse på 30 mm. Å sette inn foringer med denne tykkelse er ikke bare teknisk sett umåtelig vanskelig, men gjør prosessen så uøkonomisk at den ikke vil kunne gjennomføres. hot, there is a risk that it will collapse under the external groundwater pressure. From a design point of view, the thickness of the liner can be increased in accordance with the external pressure it is expected to be exposed to, but calculations for large diameter liners in locations with moderate groundwater suggest that liners with a thickness of 30 mm are required. Inserting linings of this thickness is not only technically immeasurably difficult, but makes the process so uneconomical that it will not be possible to carry it out.
Formålet med den foreliggende oppfinnelse er å fremskaffe en fremgangsmåte for å tilføye trykk-periferi-fasthet til foringer. The purpose of the present invention is to provide a method for adding pressure-periphery strength to liners.
Fremgangsmåten ifølge den foreliggende oppfinnelse er kjenne-tegnet ved at det anbringes en armeringsanordning i form av bånd eller viklinger av armeringsmateriale i rørledningen, etterfulgt av anbringelse av en harpiksimpregnert rørformet foring som formes til rørledningsflaten og harpiksen herdes slik at foringen danner en stiv selvbærende foring, hvilke bånd er slik at de binder til foringen slik at de blir i ett med samme og sørger for trykk-perif erispenningsarmer ing . Fortrinnsvis innsettes det forsterk-ningsbånd, f.eks. av stål eller liknende som er innhyllet i kapper av harpiksimpregnert materiale, og mens harpiksen som impregnerer kappene fremdeles er fuktig, og når stålbåndene er i posisjon, finner anbringelsen av den harpiksimpregnerte foring sted slik at det impregnerte fibersjikt av foringen bringes til å ligge flate mot flate med de impregnerte kapper, hvorved harpiksen i foring og kapper kan smelte og kappene og dermed båndene vil binde til den herdete foring. Denne fremgangsmåte forøker den herdete forings fasthet betydelig, nemlig i en slik utstrekning at det, hvor det ut fra dimensjoneringsbetraktninger kunne foreslås en foring med en tykkelse på 30 mm, ved anvendelse av stålbåndarmeringen på tilfredsstillende måte kan benyttes en rørformet foring av størrelsesorden 9 mm i tykkelse. I et slikt tilfelle kan rør-ledningens diameter være av størrelsesorden 183 cm, idet stålbåndene kan plasseres i rørledningen ved ca. 30,5 cm midtpunkter, og ved hvert av disse midtpunkter kan stålbåndene være anordnet i en montasje på to hver med sin harpiksimpregnerte kappe eller hylster, som hensiktsmessig kan omfatte et par ringer som overlapper de respektive sider av stålringene, slik at deres overlappende partier har kontakt, hvorved det vil være et massivt legeme av harpiks rundt hver stålring som forankrer den til foringen når endelig herding er avsluttet. The method according to the present invention is characterized by placing a reinforcing device in the form of bands or windings of reinforcing material in the pipeline, followed by placing a resin-impregnated tubular liner which is shaped to the surface of the pipeline and the resin is hardened so that the liner forms a rigid self-supporting liner, which bands are such that they bind to the lining so that they become one with the same and ensure pressure-peripheral tension reinforcement. Preferably, reinforcing tape is inserted, e.g. of steel or the like encased in sheaths of resin-impregnated material, and while the resin impregnating the sheaths is still moist, and when the steel bands are in position, the application of the resin-impregnated liner takes place so that the impregnated fiber layer of the liner is brought to lie flat against surface with the impregnated sheaths, whereby the resin in the lining and sheaths can melt and the sheaths and thus the bands will bond to the hardened lining. This method significantly increases the strength of the hardened liner, namely to such an extent that, where a liner with a thickness of 30 mm could be proposed from design considerations, when using the steel strip reinforcement, a tubular liner of the order of 9 mm in size can be satisfactorily used thickness. In such a case, the diameter of the pipeline can be of the order of 183 cm, as the steel bands can be placed in the pipeline at approx. 30.5 cm midpoints, and at each of these midpoints the steel bands may be arranged in an assembly of two each with its resin-impregnated sheath or sleeve, which may conveniently comprise a pair of rings overlapping the respective sides of the steel rings, so that their overlapping portions have contact, whereby there will be a solid body of resin around each steel ring anchoring it to the liner when final curing is complete.
Stålringene har en høy elastisitetsmodul, nemlig av stør-relsesorden 300 ganger (den herdete) harpiksens elastisitets- The steel rings have a high modulus of elasticity, namely of the order of 300 times (the hardened) elasticity of the resin
modul. Harpiksen kan i et typisk tilfelle anvendt for denne prosess, være en polyesterharpiks. module. The resin can, in a typical case used for this process, be a polyester resin.
Ved anvendelse i praksis kan stålringene ha en bredde på 63,5 mm og en tykkelse på 3,2 mm, og de kan anbringes i posisjon før innføringen av det rørformete foringsmateriale. When used in practice, the steel rings can have a width of 63.5 mm and a thickness of 3.2 mm, and they can be placed in position before the introduction of the tubular lining material.
Det rørformete foringsmaterialet kan anbringes i henhold The tubular lining material can be placed accordingly
til den ovenfor beskrevne omsnuingsprosess eller ved inntrekking og oppblåsing såsom også beskrevet ovenfor. to the turning process described above or by drawing in and inflating as also described above.
Den medfølgende skjematiske tegning illustrerer anvendelsen av oppfinnelsen, og den eneste figur representerer et snitt gjennom en rørledning e.l. som fores i overensstemmelse med fremgangsmåten. The accompanying schematic drawing illustrates the application of the invention, and the only figure represents a section through a pipeline or the like. which is lined in accordance with the procedure.
Det henvises til tegningen, hvor henvisningstallet 10 betegner en rørledning som fores gjennom vrengning av et fleksibelt foringsrør 12 inn i og langs rørledningen på en måte som er mer fullstendig beskrevet i britisk patentskrift 1.449.455. I samsvar med kjent teknikK omfatter foringsrøret et indre sjikt 14 som bestårav en harpiksimpreynert filt, og et ytre sjikt som er en ugjennomtrengelig hinne 16. Røret snus om som vist på tegningen ved hjelp av fluidumtrykk på en hvilken som helst passende måte. Dersom røret 10, som i det foreliggende tilfelle, har stor diameter av størrelsesorden 183 cm, kan det eventuelt benyttes luft i forbindelse med passende smøremiddel for å vrenge foringen 12. Filtmaterialet 14 er impregnert med et harpiksholdig stoff, Reference is made to the drawing, where the reference number 10 denotes a pipeline which is lined by twisting a flexible casing 12 into and along the pipeline in a manner which is more fully described in British patent document 1,449,455. In accordance with prior art, the casing comprises an inner layer 14 which consists of a resin-impregnated felt, and an outer layer which is an impermeable membrane 16. The tube is turned over as shown in the drawing by means of fluid pressure in any suitable manner. If the pipe 10, as in the present case, has a large diameter of the order of 183 cm, air can possibly be used in connection with a suitable lubricant to turn the liner 12. The felt material 14 is impregnated with a resinous substance,
typisk en polyesterharpiks som herder til hard tilstand til dannelse av en stiv foring inne i rørledningen når vrengningen er ful Iført. typically a polyester resin that cures to a hard state to form a rigid liner inside the pipeline when the twist is ful Worn.
I overensstemmelse med fremgangsmåten ifølge den foreliggende oppfinnelse er det ved 30,5 cm midtpunkter langs lengden av rørledningen 10 anbrakt stålarmerte ringmontasjer 18 som omfatter et par stålringer 20, 22, og hver stålring 20, 22 innkapslet i et hylster eller en kappe 20A, 22A bygget opp av et par bånd av samme filtmateriale som sjiktet 14 samt impregnert med den samme harpiks. Etter hvert som vrengningen skrider frem, kommer således det harpiksimpregnerte sjikt 14 i kontakt med de impregnerte bånd 20A, 22A, og i realiteten smelter harpiksen sammen med den harpiks som impregnerer båndene slik at det dannes en sammenhengende harpiksmasse som til slutt herder, hvorved stålringene 20 og 22 blir forankret til den herdete foring 12 og armerer samme, slik at foringsrøret kan motstå meget større trykkperiferispenninger. In accordance with the method according to the present invention, at 30.5 cm midpoints along the length of the pipeline 10, steel-reinforced ring assemblies 18 have been placed which comprise a pair of steel rings 20, 22, and each steel ring 20, 22 is enclosed in a sleeve or a jacket 20A, 22A built up from a couple of bands of the same felt material as layer 14 and impregnated with the same resin. As the twisting progresses, the resin-impregnated layer 14 thus comes into contact with the impregnated bands 20A, 22A, and in reality the resin fuses with the resin that impregnates the bands so that a cohesive resin mass is formed which eventually hardens, whereby the steel rings 20 and 22 are anchored to the hardened casing 12 and reinforce the same, so that the casing can withstand much greater pressure peripheral stresses.
Istedenfor å vrenge røret 12 over armeringsringmontasjene 18, er det mulig å sette inn foringsrøret ved å trekke det inn i rørledningen 10 og blåse opp røret slik at dets harpiksimpregnerte sjikt kommer i kontakt med og blir bundet til de harpiksimpregnerte bånd 20A og 22A. Instead of inverting the pipe 12 over the reinforcing ring assemblies 18, it is possible to insert the casing by pulling it into the pipeline 10 and inflating the pipe so that its resin-impregnated layer contacts and becomes bonded to the resin-impregnated bands 20A and 22A.
Montasjene 18 kan anbringes i posisjon i rørledningen 10 opptil 24 timer før foringsoperasjonen omfattende innsettingen av foringen 12 finner sted. The assemblies 18 can be placed in position in the pipeline 10 up to 24 hours before the lining operation including the insertion of the lining 12 takes place.
Herding kan iverksettes ved anvendelse av varme eller ved lysstråling når det benyttes hensiktsmessig harpiks. Curing can be carried out by the application of heat or by light radiation when an appropriate resin is used.
Denne oppfinnelse kan gjennomføres i forbindelse med en utførelsesform hvor armeringsbåndene, typisk stålbånd, er spiral-viklet med overlappende viklinger slik at stålbåndene forer flaten fortløpende. En slik armering krever når den er av metall å belegges, for derved å beskytte den mot korrosjon, og ved de ovenfor beskrevne utførelseseksempler kan belegget fortrinnsvis være av filt eller liknende materiale hvortil harpiksimpregnert foring binder. Bindingen er av betydning når foringen vil bli utsatt for ytre trykk, men når den utsettes for indre trykk er bindingsaspekten ikke så viktig etter som armeringsringene vil ta opp meget av trykkbelastningen på grunn av deres plassering utenfor foringen. This invention can be carried out in connection with an embodiment where the reinforcing bands, typically steel bands, are spirally wound with overlapping windings so that the steel bands line the surface continuously. Such reinforcement requires, when it is made of metal, to be coated, in order to thereby protect it from corrosion, and in the above-described embodiments, the coating can preferably be made of felt or similar material to which the resin-impregnated lining binds. The bonding is important when the liner will be exposed to external pressure, but when it is exposed to internal pressure the bonding aspect is not so important as the reinforcing rings will absorb much of the pressure load due to their location outside the liner.
Det er ikke ubetinget nødvendig at armeringsbåndene er av metall, men de bør ha en høyere elastisitetsmodul enn den fleksible foring når denne er herdet. It is not absolutely necessary that the reinforcing tapes are made of metal, but they should have a higher modulus of elasticity than the flexible liner when this has hardened.
Ved et annet utførelseseksempel anvendt på rørledninger o.l. med liten diameter og når belastningene er mindre, kan armeringen ha form av pianotråd (høyverdig ståltråd) forsynt med et passende beskyttelsesbelegg såsom UPVC. In another design example applied to pipelines etc. with a small diameter and when the loads are less, the reinforcement can be in the form of piano wire (high-quality steel wire) provided with a suitable protective coating such as UPVC.
Således er det frembrakt en armering for rørledninger med bedre trykk-periferifasthet enn tidligere kjente foringer, f.eks. som beskrevet i GB-patentskrift 1.449.455. Thus, a reinforcement for pipelines with better pressure-peripheral strength than previously known liners, e.g. as described in GB patent document 1,449,455.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB848400365A GB8400365D0 (en) | 1984-01-07 | 1984-01-07 | Lining of pipelines and passageways |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO850029L NO850029L (en) | 1985-07-08 |
| NO165713B true NO165713B (en) | 1990-12-17 |
| NO165713C NO165713C (en) | 1991-03-27 |
Family
ID=10554679
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO850029A NO165713C (en) | 1984-01-07 | 1985-01-04 | PROCEDURE FOR LINING A PIPE PIPE. |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4622196A (en) |
| EP (1) | EP0157948B1 (en) |
| AT (1) | ATE40195T1 (en) |
| AU (1) | AU569359B2 (en) |
| CA (1) | CA1250737A (en) |
| CY (1) | CY1582A (en) |
| DE (1) | DE3476248D1 (en) |
| ES (1) | ES8604684A1 (en) |
| GB (1) | GB8400365D0 (en) |
| HK (1) | HK8492A (en) |
| NO (1) | NO165713C (en) |
| ZA (1) | ZA8572B (en) |
Families Citing this family (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4752511A (en) * | 1986-08-15 | 1988-06-21 | Insituform International Nv | Method and apparatus for sealing the space between pipes and linings therefor |
| EP0217189B1 (en) * | 1985-09-17 | 1989-12-27 | Insituform Group Limited | lining and method of a lining pipe |
| GB8530720D0 (en) * | 1985-12-13 | 1986-01-22 | Bio Kil Chemicals Ltd | Applying protective coating |
| DE3546417A1 (en) * | 1985-12-31 | 1987-07-16 | Rolining Ag | METHOD AND DEVICE FOR RENOVATING IN PARTICULAR GROUND PIPELINES |
| HU204601B (en) * | 1986-02-20 | 1992-01-28 | Trest Juzhvodoprovod | Method for making protective coating on the inner surface of pipings and apparatus for carrying out the method |
| US4901424A (en) * | 1988-07-26 | 1990-02-20 | Insituform Of North America, Inc. | Method of forming an end seal for a pipe liner |
| JPH02155719A (en) * | 1988-12-09 | 1990-06-14 | Mamiko Endou | Pipe lining material and pipeline repairing |
| US5106440A (en) * | 1989-01-30 | 1992-04-21 | Tangeman Andrew F | Method for repairing manholes or wetwalls |
| US4976290A (en) * | 1989-06-12 | 1990-12-11 | Ozite Corporation | Tubular member having a liner |
| US5451351A (en) * | 1991-09-13 | 1995-09-19 | Composite Components, Inc. | Method for rehabilitating a pipe with a liner having an electrically conductive layer |
| US5348764A (en) * | 1992-10-06 | 1994-09-20 | Yasuhiro Yokoshima | Method for impregnating a lining material with a hardenable resin |
| US5680885A (en) * | 1992-10-08 | 1997-10-28 | Catallo; Giulio | Method for rehabilitating pipe |
| US5447664A (en) * | 1992-10-14 | 1995-09-05 | Tokyo Gas Co., Ltd. | Method of lining an inner surface of a pipe |
| US5466093A (en) * | 1994-05-16 | 1995-11-14 | Keller; Carl E. | Method and apparatus for removing contaminants from a duct or pipe |
| US5653555A (en) | 1995-05-19 | 1997-08-05 | Inliner, U.S.A. | Multiple resin system for rehabilitating pipe |
| US5699838A (en) | 1995-05-22 | 1997-12-23 | Inliner, U.S.A. | Apparatus for vacuum impregnation of a flexible, hollow tube |
| DE29802675U1 (en) | 1998-02-17 | 1998-08-06 | Kmg Kanal Mueller Gruppe Mitte | Device for inserting a lining hose from the main sewer into a house connection duct |
| EA002432B1 (en) * | 1998-10-29 | 2002-04-25 | Шелл Интернэшнл Рисерч Маатсхаппий Б.В. | Method for transporting and installing an expandable steel tubular |
| DE19852690A1 (en) | 1998-11-16 | 2000-05-18 | Mueller Umwelttechnik | Method and device for the remediation of an old pipe run in the ground |
| US6423258B1 (en) | 2000-07-31 | 2002-07-23 | American Pipe & Plastics, Inc. | Machine and method for providing folded pipe liners |
| US20030038403A1 (en) * | 2001-08-21 | 2003-02-27 | American Pipe & Plastics, Inc. | Machine and method for providing folded pipe liners |
| US6932116B2 (en) * | 2002-03-14 | 2005-08-23 | Insituform (Netherlands) B.V. | Fiber reinforced composite liner for lining an existing conduit and method of manufacture |
| US6708729B1 (en) | 2002-03-14 | 2004-03-23 | Instituform B.V. | Fiber reinforced composite liner for lining an existing conduit and method of manufacture |
| US6813570B2 (en) * | 2002-05-13 | 2004-11-02 | Delphi Technologies, Inc. | Optimized convection based mass airflow sensor circuit |
| US20060151042A1 (en) * | 2005-01-12 | 2006-07-13 | Stringfellow William D | Pipe liner |
| US7374127B2 (en) * | 2005-01-12 | 2008-05-20 | Smart Pipe Company, Inc. | Systems and methods for making pipe liners |
| US8567448B2 (en) | 2007-12-26 | 2013-10-29 | Smart Pipe Company, Inc. | Methods and systems for in situ pipe lining |
| US8567450B2 (en) * | 2005-01-12 | 2013-10-29 | Smart Pipe Company Lp | Methods and systems for in situ manufacture and installation of non-metallic high pressure pipe and pipe liners |
| US9453606B2 (en) * | 2007-12-26 | 2016-09-27 | Smart Pipe Company, Inc. | Movable factory for simultaneous mobile field manufacturing and installation of non-metallic pipe |
| PL2421906T3 (en) | 2009-04-21 | 2017-08-31 | Huntsman International Llc | Polyisocyanate composition |
| US9310014B2 (en) | 2009-12-07 | 2016-04-12 | Smart Pipe Company L.P. | Systems and methods for making pipe, and method of installing the pipe in a pipeline |
| RU2560434C2 (en) | 2011-01-31 | 2015-08-20 | Хантсмэн Интернэшнл Ллс | Epoxy resin-based composition |
| CA2854689C (en) | 2011-11-22 | 2016-04-05 | Huntsman International Llc | Curable polyisocyanate composition comprising an epoxy resin |
| CN104159942B (en) | 2011-12-28 | 2016-10-12 | 亨茨曼国际有限公司 | Comprise the curable compositions of polyisocyantates composition |
| EP2644270A1 (en) | 2012-03-29 | 2013-10-02 | Huntsman International Llc | Polyisocyanate trimerization catalyst composition |
| EP2805976A1 (en) | 2013-05-24 | 2014-11-26 | Huntsman International Llc | Aldehyde comprising compositions suitable for making curable polyisocyanate compositions |
| SE1651507A1 (en) * | 2016-11-18 | 2018-05-19 | Railcare Group Ab | Reinforced tube and method of relining a culvert with such atube |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3494813A (en) * | 1965-11-08 | 1970-02-10 | John E Lawrence | Method of lining a pipe using fluid pressure in the form of a vacuum |
| GB1449455A (en) * | 1972-12-08 | 1976-09-15 | Insituform Pipes & Structures | Lining of passageways |
| US4064211A (en) * | 1972-12-08 | 1977-12-20 | Insituform (Pipes & Structures) Ltd. | Lining of passageways |
| CA1159347A (en) * | 1978-12-29 | 1983-12-27 | Akira Morita | Method and apparatus for providing the inner surface of a pipe with a flexible tubular lining material through a liquid resin under pressure |
| US4432824A (en) * | 1980-07-31 | 1984-02-21 | Raychem Corporation | Method for internal pipe protection |
| US4434115A (en) * | 1981-02-18 | 1984-02-28 | Insituform International, Inc. | Method for remote lining of side connections |
| CY1394A (en) * | 1982-09-14 | 1987-12-18 | Edgealpha Ltd | Reinforced lining material |
| GB8400364D0 (en) * | 1984-01-07 | 1984-02-08 | Edgealpha Ltd | Lining of pipelines and passageways |
-
1984
- 1984-01-07 GB GB848400365A patent/GB8400365D0/en active Pending
- 1984-12-27 EP EP84116348A patent/EP0157948B1/en not_active Expired
- 1984-12-27 AT AT84116348T patent/ATE40195T1/en not_active IP Right Cessation
- 1984-12-27 DE DE8484116348T patent/DE3476248D1/en not_active Expired
-
1985
- 1985-01-03 CA CA000471411A patent/CA1250737A/en not_active Expired
- 1985-01-04 NO NO850029A patent/NO165713C/en unknown
- 1985-01-04 ES ES539353A patent/ES8604684A1/en not_active Expired
- 1985-01-04 ZA ZA8572A patent/ZA8572B/en unknown
- 1985-01-04 AU AU37315/85A patent/AU569359B2/en not_active Ceased
- 1985-01-07 US US06/689,193 patent/US4622196A/en not_active Expired - Fee Related
-
1992
- 1992-01-23 HK HK84/92A patent/HK8492A/en unknown
- 1992-04-03 CY CY1582A patent/CY1582A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US4622196A (en) | 1986-11-11 |
| CY1582A (en) | 1992-04-03 |
| AU3731585A (en) | 1985-07-18 |
| NO165713C (en) | 1991-03-27 |
| EP0157948A2 (en) | 1985-10-16 |
| EP0157948B1 (en) | 1989-01-18 |
| ES539353A0 (en) | 1986-02-01 |
| CA1250737A (en) | 1989-03-07 |
| ES8604684A1 (en) | 1986-02-01 |
| ATE40195T1 (en) | 1989-02-15 |
| DE3476248D1 (en) | 1989-02-23 |
| EP0157948A3 (en) | 1987-05-06 |
| NO850029L (en) | 1985-07-08 |
| GB8400365D0 (en) | 1984-02-08 |
| AU569359B2 (en) | 1988-01-28 |
| ZA8572B (en) | 1985-08-28 |
| HK8492A (en) | 1992-01-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO165713B (en) | PROCEDURE FOR LINING A PIPE PIPE. | |
| CA2121711A1 (en) | Reinforced lining hose | |
| US20030213556A1 (en) | Apparatus, methods, and liners for repairing conduits | |
| RU2121101C1 (en) | Pipe and method of its manufacture | |
| US6167913B1 (en) | Pipe liner, a liner product and methods for forming and installing the liner | |
| US4836715A (en) | Passageway lining material | |
| US20060174957A1 (en) | Apparatus, methods, and liners for repairing conduits | |
| AU651092B2 (en) | Pipeline and passageway lining materials | |
| NO171125B (en) | PROCEDURE FOR INTERNAL LINING OF A PIPE PIPE, AND REDUCED LINING COVER FOR A PIPE PIPE | |
| US8978708B2 (en) | Tubular liner for the rehabilitation of defective sewers with an integral longitudinal pull strap and reinforcing layer | |
| SA93140300B1 (en) | Methods for using high tensile strength reinforcement to repair surface defects in a pipe | |
| JP2763435B2 (en) | Partial repair method for underground pipeline | |
| WO2012054992A1 (en) | Construction of pipes | |
| US4637754A (en) | Lining of pipelines and passageways | |
| US20130098535A1 (en) | Method and apparatus for forming a coating on a lining of a conduit in situ | |
| JP2017114007A (en) | Tubular lining material and method for manufacturing the same, and existing tube repair method using tubular lining material | |
| CA2291821A1 (en) | Apparatus and method for lining of passageways | |
| US2031057A (en) | Composite pipe and like structure | |
| JPS63158384A (en) | Shaft coupling and manufacture thereof | |
| NO881836L (en) | PROCEDURE AND DEVICE FOR PLASTROS INSTALLATION. | |
| US9163771B1 (en) | Conduit repair system | |
| FI77923C (en) | Method of providing a transport channel. | |
| JPH09268639A (en) | Backing method of manhole | |
| RU12448U1 (en) | CURVED TUBE ELBOW (FITTING) | |
| JP7217444B1 (en) | Lining material for rehabilitation of existing pipes and method for rehabilitation of existing pipes for sewerage and water supply using the same |